Metal cap



Feb. 23 1926.

C. HAMMER METAL CAP Filed Feb. 2, 1925 Patented Feb. 23, 1926.

UNITED STATES PATENT OFFICE.

CHARLES HAMMER, OF HOLLIS COTl'RT BOULEVARD, QUEENS COUNTY, NEW YORK.

METAL GAP.

Application filed February 2, 1925. Serial llTo. 6,197.

It all coho 1n it may concern: i

' Be it known that I, CHARLES HAMMER, a citizen of the United States,

5 Queens-and State of New York, have invented certain new and useful Improvements in Metal Caps, of which the following is a specification.

This invention relates to metal caps or closures for glass containers or receptacles and the like and; particularly. to that style of cap commonly designated in the trade as lug caps for use onglass bottles or-oontainers having lugs or divided threads, the object of the invention being to provide an imdepending wedge-shaped or segmentally formed extensions or projections 8 shown as proved reusable metal cap or closure of this class which may be made cheaply to fillthe demand for an inexpensive cap.

One of the objects of the present invention is the pro-vision of a metal cap' or closure having an improved form of looking or holding lug which will engage or grip the threads of a glass container a considerable distance lengthwise of such lugs thereby more effectively to draw down the cap on to the container and insure a tighterseal and also pre vent the working off'of the cap in the handling of the package and in which the lugs will also have a stop face to limit the turning on movement ofthe cap.

In the drawings accompanying and forming part of this specification, Fig. iiis a per spective view of this-improved cap looking into the interior thereof with a part of the liner broken away; Fig. 2 is a side view of the cap applied to a container; Fig. 3 is a cross sectional view taken on line 2-2 of Fig. 2 showing the cap applied to a cons tainer but before the cap is turned on to 4 the container, and Fig.

form of container which this improved cap.

Similar characters of reference indicate corresponding parts in the several views.

Before explaining in detail the present improvement and mode of operation thereof, I desire to have understood that the invention is not limited to the details of construction and arrangement of parts which are illustrated in the accompanying drawings, since the invention is capable of other mbodi-- ments, and that the employ is for the not of limitation. x This improved cap comprises a top 2 havphraseology whiclr I purpose of description and residing at Hollis Court Boulevard, in the county of- 4 is a view of one may be used with ing a depending flange or skirt 3 provided with suitable corrugations 4. The cap is usually provided with a liner 5 for making a tight seal at the top of the glass container,

bottle or jar 6. The lower edge of this cap is what may be designated as a raw or free edge 7, although in a more expensive form thereof those portions of the edge of the cap between the locking ln s could be provided with a beaded or our ed edge thereby to prevent rusting and corrosion and the action of .the elements and thus provide a more sanitary form of cap' as well as one that would prevent cutting of the hands of the user; The skirt is provided at intervals with four in number although a different number could be used if desired, according to the size of the cap. Each of these projections has a part thereof bent inwardly. toward the center of the cap to provide a fiat-faced inclined, holding resilient lip or lug 9 of a single thickness of metal, the entering or forward end of each lug being spaced further from the lower edge and the top of the cap as at 10 than is the rear end of the lug so that the l g is thus gradually inclined throughout its length to properly cooperat with the container lugs or threads 12 shown on the present form of glass container 6.

At the rear end of each lugs which substantially merges into the skirt edge, it is depressed or bent inwardly toward the top of the cap to form an abrupt wall or stop 14, 90 that part of the bent rear end in the rear of the stop face running substantially parallel with the edge of the skirt and reinforce such stopand the lu From the foregoing it will be seen that when the cap is turned on to the glass container it will, bvreason of the distance of the forward end of the lug from the edge of the skirt more easily and quickly engage the thread, in other words be more readily guided on to the thread and its flat side or face will then engage such thread all along the inclined portion of the lug, thus giving an increased bearing to the lug upon the thread of the container and so drawdown theclosure more effectively upon the upper edge vof the container and insure a tighter sealing of the same and also prevent the preback of the. cap during the mature snapping handling'of the sealed package. .The 010- acting 'to sure maybe repeatedly used in an effective mannerto seal the container.

On the turning of the cap onto the con tainer it can be turned until the stop of each lug engages the end of the container projection or thread in a manner which will be readily understood. The cap may be made of resilient sheet metal or of any suitable material that will enable the lugs to e'fi'ectively stand up.

From the foregoing it will be observed that I have provided a comparatively inex: ensive metal closure or cap having resilient 1nclincd lugs which can be made very quickly and readily and yet have an eflicientgrilpplng means upon the lugs or threads of-t e container throughout a considerable distance thereof and which can be easily rotated into position and turned off of the containgr so g 'that it is capable of repeated reuse.

In practice in some forms of caps and glass threads the forward end of each In may be given a furtherfslight bend outwar to fur- "ther assist in guiding the cap on to the glass thread if desired, but in the present style of cap' the inclined form of the lug does away withthis.

It is to be understood that b describing in detail herein any particular orm, structure or arrangement, -it isxnot intended to limit the invention beyond the terms of the several claims or the requirements of the prior art.

Having thus explained the nature of my said invention and described a way ,of constructing and using the same, although without attempting to set forth all of the forms in which it may be made, or all of the modes of its use,,I' claim:

1. A metal ea or closure comprising atop 40 having a depen ing skirt rovided at intersions having a part thereof bent inwardly to form inwardly extending locking ed e o the 'vals with depending we ge-shaped extenlips, each" inclined in the direction of 1ts length throughout the major portion thereof with theforward entering end spaced from and below the edge of the skirt and its rear end terminating at theedge "of the skirt, the rear rind of a locking lip terminatingin a stop ace.

2. A metal cap or closure comprising a top havin a depending skirt prov ded with inwardly ent locking lips having the forward ends thereof spaced below the lower edge of the skirt and the rear ends merging into the edge ofthe skirt whereby each is inclined throughout the major art -of its length with a part atthe rear t ereof running substantially parallel with the edge of r so the skirt. A

3. A metal .cap, or closure; comprising a top havin a depending skirt provided with inwardly bent locking lips having the for uaard ends thereof spacedbelow the lower e ge into the edgeof the skirt whereby each is inclined throughout the major artflof its length with a part at the rear t ereof running substantially parallel with the edge of the skirt, said arallel ortion having: a part bent inwar y tower the skirt to form a stop at the end of the inelinedportion.

4. A metal cap comprising a topvhaving a depending corrugated skirt having; at spaced intervals inclined resilient loc 'ng lips bent inwardly from the skirt, the forward-ends of the lips spaced from the edge of'the skirt and the. rear ends thereof merging 1nto the skirt and provided with-stops, each of the locking licps gradually tapering from' its entering en toward its rear end with a part of the stop forming portion runnin subsiantially parallel with the lower s irt. igned at Brooklyn, county York, this 3th day of January, 19.25;

of the skirt and the rear ends merging of kingi,"new

1 CHARLES HAMMER}. 

